1232321201001 has 32 divisors (see below), whose sum is σ = 2096452876800. Its totient is φ = 707552839440.

The previous prime is 1232321200997. The next prime is 1232321201011. The reversal of 1232321201001 is 1001021232321.

It is not a de Polignac number, because 1232321201001 - 2² = 1232321200997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1232321201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109184611 + ... + 109195896.

It is an arithmetic number, because the mean of its divisors is an integer number (65514152400).

Almost surely, 2^{1232321201001} is an apocalyptic number.

1232321201001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232321201001 is a deficient number, since it is larger than the sum of its proper divisors (864131675799).

1232321201001 is a wasteful number, since it uses less digits than its factorization.

1232321201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218380546 (or 218380540 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1232321201001 its reverse (1001021232321), we get a palindrome (2233342433322).

The spelling of 1232321201001 in words is "one trillion, two hundred thirty-two billion, three hundred twenty-one million, two hundred one thousand, one".